software maintenance

Expert System for Industry Noise

Use Expert System for Industry Noise to find the most cost effective noise control concept and document your findings.
Enter the model in the Geo-database, calculate the status quo in the Calculations, open the Expert System to optimize the industrial noise control to ensure the best value for the invested resources, and prepare an advanced documentation in the Expert System. Store the noise control concept and add it to other calculation runs to show variants with and without noise control.

Module requirements:

Use any number of receivers and sources (point line and are sources)
Assign multiple source modifications to each source either as additional measures or as alternatives
Noise limits variable depending on receiver classification
Optimization to find the minimum cost for noise control
On-line selection with 2D and 3D visualization
Selected noise control stored as a building block for further maps…

The receiver list and source list are always visible. The other windows can be activated in the one row or the additional rows at any time.

The middle part of the table above shows detail information for the active source and receiver. This information includes the time history of sources and levels at the receiver, frequency distributions of the sound power at the source, and the contribution or the level at the receiver.

The contribution plot for a given receiver shows how the noise levels will sum up if they are sorted so that the most quiet source contribution is on the right side and every additional source in the diagram is louder than the last. By simply looking at the diagram, it becomes clear that noise control needs to start on the left side of the diagram, not with the more quiet sources on the right side.

The Optimization
After entering noise control options for each source, run the optimization. This will show which noise control option is the most cost effective. On line changes are accounted for immediately.

The green line in the above diagram shows the status with noise control and the red line shows the status without noise control. The selected measures are visible in an additional list:

The modifications are rank ordered, but they can be deactivated any time to show a different scenario.
Frequencies, time histograms and measures are all documented in a single unit.
True optimization provided without trial and error.
Resulting noise control concepts can be added to the calculation by selecting a single file.

Last modification: 15 June 2005